linux-kernel - Re: [PATCH v7] soc: samsung: exynos-pmu: Enable CPU Idle for gs101

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Message-ID: <bca15900-da2d-4384-a79a-ee630fd7cee2@kernel.org>
Date: Wed, 23 Jul 2025 11:00:41 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 André Draszik <andre.draszik@...aro.org>,
 Tudor Ambarus <tudor.ambarus@...aro.org>,
 Alim Akhtar <alim.akhtar@...sung.com>,
 Peter Griffin <peter.griffin@...aro.org>
Cc: William Mcvicker <willmcvicker@...gle.com>,
 linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org,
 linux-kernel@...r.kernel.org, kernel-team@...roid.com, sudeep.holla@....com
Subject: Re: [PATCH v7] soc: samsung: exynos-pmu: Enable CPU Idle for gs101

On 21/07/2025 10:18, Krzysztof Kozlowski wrote:
> 
> On Thu, 17 Jul 2025 17:22:36 +0100, Peter Griffin wrote:
>> Register cpu pm notifiers for gs101 which call the
>> gs101_cpu_pmu_online/offline callbacks which in turn program the ACPM
>> C2 hint. This hint is required to actually enter the C2 idle state in
>> addition to the PSCI calls due to limitations in the el3mon/ACPM firmware.
>>
>> A couple of corner cases are handled, namely when the system is rebooting
>> or suspending we ignore the request. Additionally the request is ignored if
>> the CPU is in CPU hot plug. Some common code is refactored so that it can
>> be called from both the CPU hot plug callbacks and CPU PM notifier taking
>> into account that CPU PM notifiers are called with IRQs disabled whereas
>> CPU hotplug callbacks are not.
>>
>> [...]
> 
> Applied, thanks!
> 
> [1/1] soc: samsung: exynos-pmu: Enable CPU Idle for gs101
>       (no commit info)
> 

... and dropped, because I missed the part it is not bisectable. This
cannot go the same cycle.

Best regards,
Krzysztof